Response from Php File to Ajax is not getting sent

Issue Solved I was missing a closing brace for data…

    jQuery(document).ready(function($){
    $("#login_otp_btn").click(function(event){
    val();
    event.preventDefault();
 jQuery.ajax({
        url: wpac_ajax_url.ajax_url,
        type:'POST',
        data :{
            dataType:'JSON',
            action : 'login_ajax_callback',
            login : $("#login_mobile").val(),
            }

           success:function(response){
                console.log("url wpac " + wpac_ajax_url.ajax_url); 
                if(response !== ""){
                response = JSON.parse( response );
                console.log(response);
                }else{
                    console.log("Response is empty");
                     }
                },
                });
                $("#login_otp_field").show();   
                })
            });